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Super Precision Cylindrical Roller Bearings

ZHIO® cylindrical roller bearings have many designs, dimension series and sizes. The majority is single row bearings with a cage. Single and double row full complement bearings (without cage) complete the ZHIO® standard assortment for general engineering. Bearings with a cage can accommodate heavy radial loads and operate at high speeds. Full complement cylindrical roller bearings are suitable for very heavy radial loads at moderate speeds.

The rollers of ZHIO® cylindrical roller bearings are key components. Their geometry, the so-called logarithmic profile, provides an optimum stress distribution in the contact zones in the bearing. Their surface finish maximizes lubricant film formation and optimizes rolling motion of the rollers. The benefits derived from this compared with traditional designs include enhanced operational reliability and a greater insensitivity to misalignment.

The range of ZHIO® cylindrical roller bearings comprises the basic types.
ZHIO® single row cylindrical roller bearings, caged, mainly of the NU, NJ, NUP and N designs.
ZHIO® double row cylindrical roller bearings, caged, mainly of the NNUand NN designs.
ZHIO® single row full complement cylindrical roller bearings, mainly of the NCF and NJG designs.
ZHIO® double row full complement cylindrical roller bearings, mainly of the NNF design.

ZHIO® cylindrical roll bearings have the following design features:
1. Optimized design in ribs and rollers to enhance the axial load capacity
2. Optimized design in the geometric surface between rollers and raceway to balance the radial load distribution
3. Limit the width of raceway undercut, increase the contact area between raceway and rollers and enhance the radial load capacity
4. High standard material, strictly control the element content, e.g. Ti<30ppm
5. Low noise design, reaches to V1 grade noise level, contributes to the quieter running of automobile engine and gearbox.

Dimension(mm) Radial Load
Model inside Outside Height Dynamic Static Maximum Speed Weight
NN 3010 KTN/VQ497 50 mm 80 mm 23 mm 52.8 kN 73.5 kN 0.4 kg
NN 3010 KTN/UPW33 50 mm 80 mm 23 mm 52.8 kN 73.5 kN 0.4 kg
NN 3010 KTN/UPVR522 50 mm 80 mm 23 mm 52.8 kN 73.5 kN 0.4 kg
NN 3010 KTN/UP 50 mm 80 mm 23 mm 52.8 kN 73.5 kN 0.4 kg
NN 3010 KTN/SPW33VR521 50 mm 80 mm 23 mm 52.8 kN 73.5 kN 0.4 kg
NN 3010 KTN/SPW33 50 mm 80 mm 23 mm 52.8 kN 73.5 kN 0.4 kg
NN 3010 KTN/SPVR522 50 mm 80 mm 23 mm 52.8 kN 73.5 kN 0.4 kg
NN 3010 KTN/SPVR521 50 mm 80 mm 23 mm 52.8 kN 73.5 kN 0.4 kg
NN 3010 KTN/SP 50 mm 80 mm 23 mm 52.8 kN 73.5 kN 0.4 kg
NN 3009 TN/SP 45 mm 75 mm 23 mm 50.1 kN 65.5 kN 0.37 kg
NN 3009 KTN/VQ497 45 mm 75 mm 23 mm 50.1 kN 65.5 kN 0.37 kg
NN 3009 KTN/UPVR522 45 mm 75 mm 23 mm 50.1 kN 65.5 kN 0.37 kg
NN 3009 KTN/SPVR521 45 mm 75 mm 23 mm 50.1 kN 65.5 kN 0.37 kg
NN 3009 KTN/SP 45 mm 75 mm 23 mm 50.1 kN 65.5 kN 0.37 kg
NN 3008 TN/SP 40 mm 68 mm 21 mm 42.9 kN 56 kN 0.28 kg
NN 3008 KTN/UPVR521 40 mm 68 mm 21 mm 42.9 kN 56 kN 0.28 kg
NN 3008 KTN/UP 40 mm 68 mm 21 mm 42.9 kN 56 kN 0.28 kg
NN 3008 KTN/SPC1LVR521 40 mm 68 mm 21 mm 42.9 kN 56 kN 0.28 kg
NN 3008 KTN/SP 40 mm 68 mm 21 mm 42.9 kN 56 kN 0.28 kg
NN 3007/SP 35 mm 62 mm 20 mm 39.1 kN 50 kN 0.25 kg
NN 3007 K/UP 35 mm 62 mm 20 mm 39.1 kN 50 kN 0.25 kg
NN 3007 K/SP 35 mm 62 mm 20 mm 39.1 kN 50 kN 0.25 kg
NN 3006/SP 30 mm 55 mm 19 mm 30.8 kN 37.5 kN 0.19 kg
NN 3006 KTN/VQ497 30 mm 55 mm 19 mm 30.8 kN 37.5 kN 0.18 kg
NN 3006 KTN/SPW33 30 mm 55 mm 19 mm 30.8 kN 37.5 kN 0.18 kg
NN 3006 KTN/SPC1LVR521 30 mm 55 mm 19 mm 30.8 kN 37.5 kN 0.18 kg
NN 3006 KTN/SP 30 mm 55 mm 19 mm 30.8 kN 37.5 kN 0.18 kg
NN 3005/SP 25 mm 47 mm 16 mm 26 kN 30 kN 0.12 kg
NN 3005 K/SP 25 mm 47 mm 16 mm 26 kN 30 kN 0.12 kg
N 1024 KTN9/SP 120 mm 180 mm 28 mm 134 kN 196 kN 2.2 kg
N 1021 KTNHA/HC5SP 105 mm 160 mm 26 mm 108 kN 146 kN 1.44 kg
N 1021 KTN9/SP 105 mm 160 mm 26 mm 110 kN 153 kN 1.65 kg
N 1020 KTNHA/SP 100 mm 150 mm 24 mm 85.8 kN 120 kN 1.31 kg
N 1020 KTNHA/HC5SP 100 mm 150 mm 24 mm 85.8 kN 120 kN 1.17 kg
N 1020 KTN9/SP 100 mm 150 mm 24 mm 88 kN 125 kN 1.31 kg
N 1020 KTN9/HC5SP 100 mm 150 mm 24 mm 88 kN 125 kN 1.17 kg
N 1019 KTNHA/SP 95 mm 145 mm 24 mm 80.9 kN 112 kN 1.25 kg
N 1019 KTNHA/HC5SP 95 mm 145 mm 24 mm 80.9 kN 112 kN 1.12 kg
N 1019 KTN9/SP 95 mm 145 mm 24 mm 84.2 kN 116 kN 1.25 kg
N 1019 KTN9/HC5SP 95 mm 145 mm 24 mm 84.2 kN 116 kN 1.12 kg